{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["process characterization", "machine or equipment", "material", "machanical property", "manufacturing process", "application"], "input": "In gas tungsten arc welding ( GTAW ) based additive manufacturing ( AM ) , omni-directional deposition with side feeding is common when depositing complex parts , which is different from the gas metal arc welding ( GMAW ) ."}
{"process characterization": [], "machine or equipment": [], "material": [], "machanical property": [], "manufacturing process": ["gas tungsten arc welding", "GTAW", "additive manufacturing", "AM", "gas metal arc welding", "GMAW"], "application": []}